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
  22 static int msm_gpu_show(struct drm_device *dev, struct seq_file *m)
  23 {
  24         struct msm_drm_private *priv = dev->dev_private;
  25         struct msm_gpu *gpu = priv->gpu;
  26
  27         if (gpu) {
  28                 seq_printf(m, "%s Status:\n", gpu->name);
  29                 gpu->funcs->show(gpu, m);
  30         }
  31
  32         return 0;
  33 }
  34
  35 static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
  36 {
  37         struct msm_drm_private *priv = dev->dev_private;
  38         struct msm_gpu *gpu = priv->gpu;
  39
  40         if (gpu) {
  41                 seq_printf(m, "Active Objects (%s):\n", gpu->name);
  42                 msm_gem_describe_objects(&gpu->active_list, m);
  43         }
  44
  45         seq_printf(m, "Inactive Objects:\n");
  46         msm_gem_describe_objects(&priv->inactive_list, m);
  47
  48         return 0;
  49 }
  50
  51 static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
  52 {
  53         return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm);
  54 }
  55
  56 static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
  57 {
  58         struct msm_drm_private *priv = dev->dev_private;
  59         struct drm_framebuffer *fb, *fbdev_fb = NULL;
  60
  61         if (priv->fbdev) {
  62                 seq_printf(m, "fbcon ");
  63                 fbdev_fb = priv->fbdev->fb;
  64                 msm_framebuffer_describe(fbdev_fb, m);
  65         }
  66
  67         mutex_lock(&dev->mode_config.fb_lock);
  68         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
  69                 if (fb == fbdev_fb)
  70                         continue;
  71
  72                 seq_printf(m, "user ");
  73                 msm_framebuffer_describe(fb, m);
  74         }
  75         mutex_unlock(&dev->mode_config.fb_lock);
  76
  77         return 0;
  78 }
  79
  80 static int show_locked(struct seq_file *m, void *arg)
  81 {
  82         struct drm_info_node *node = (struct drm_info_node *) m->private;
  83         struct drm_device *dev = node->minor->dev;
  84         int (*show)(struct drm_device *dev, struct seq_file *m) =
  85                         node->info_ent->data;
  86         int ret;
  87
  88         ret = mutex_lock_interruptible(&dev->struct_mutex);
  89         if (ret)
  90                 return ret;
  91
  92         ret = show(dev, m);
  93
  94         mutex_unlock(&dev->struct_mutex);
  95
  96         return ret;
  97 }
  98
  99 static struct drm_info_list msm_debugfs_list[] = {
 100                 {"gpu", show_locked, 0, msm_gpu_show},
 101                 {"gem", show_locked, 0, msm_gem_show},
 102                 { "mm", show_locked, 0, msm_mm_show },
 103                 { "fb", show_locked, 0, msm_fb_show },
 104 };
 105
 106 static int late_init_minor(struct drm_minor *minor)
 107 {
 108         int ret;
 109
 110         if (!minor)
 111                 return 0;
 112
 113         ret = msm_rd_debugfs_init(minor);
 114         if (ret) {
 115                 dev_err(minor->dev->dev, "could not install rd debugfs\n");
 116                 return ret;
 117         }
 118
 119         ret = msm_perf_debugfs_init(minor);
 120         if (ret) {
 121                 dev_err(minor->dev->dev, "could not install perf debugfs\n");
 122                 return ret;
 123         }
 124
 125         return 0;
 126 }
 127
 128 int msm_debugfs_late_init(struct drm_device *dev)
 129 {
 130         int ret;
 131         ret = late_init_minor(dev->primary);
 132         if (ret)
 133                 return ret;
 134         ret = late_init_minor(dev->render);
 135         if (ret)
 136                 return ret;
 137         ret = late_init_minor(dev->control);
 138         return ret;
 139 }
 140
 141 int msm_debugfs_init(struct drm_minor *minor)
 142 {
 143         struct drm_device *dev = minor->dev;
 144         int ret;
 145
 146         ret = drm_debugfs_create_files(msm_debugfs_list,
 147                         ARRAY_SIZE(msm_debugfs_list),
 148                         minor->debugfs_root, minor);
 149
 150         if (ret) {
 151                 dev_err(dev->dev, "could not install msm_debugfs_list\n");
 152                 return ret;
 153         }
 154
 155         return 0;
 156 }
 157
 158 void msm_debugfs_cleanup(struct drm_minor *minor)
 159 {
 160         drm_debugfs_remove_files(msm_debugfs_list,
 161                         ARRAY_SIZE(msm_debugfs_list), minor);
 162         if (!minor->dev->dev_private)
 163                 return;
 164         msm_rd_debugfs_cleanup(minor);
 165         msm_perf_debugfs_cleanup(minor);
 166 }
 167 #endif
 168