drivers/gpu/drm/omapdrm/omap_debugfs.c

   1 /*
   2  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
   3  * Author: Rob Clark <rob.clark@linaro.org>
   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 #include <linux/seq_file.h>
  19
  20 #include <drm/drm_crtc.h>
  21 #include <drm/drm_fb_helper.h>
  22
  23 #include "omap_drv.h"
  24 #include "omap_dmm_tiler.h"
  25
  26 #ifdef CONFIG_DEBUG_FS
  27
  28 static int gem_show(struct seq_file *m, void *arg)
  29 {
  30         struct drm_info_node *node = (struct drm_info_node *) m->private;
  31         struct drm_device *dev = node->minor->dev;
  32         struct omap_drm_private *priv = dev->dev_private;
  33
  34         seq_printf(m, "All Objects:\n");
  35         mutex_lock(&priv->list_lock);
  36         omap_gem_describe_objects(&priv->obj_list, m);
  37         mutex_unlock(&priv->list_lock);
  38
  39         return 0;
  40 }
  41
  42 static int mm_show(struct seq_file *m, void *arg)
  43 {
  44         struct drm_info_node *node = (struct drm_info_node *) m->private;
  45         struct drm_device *dev = node->minor->dev;
  46         struct drm_printer p = drm_seq_file_printer(m);
  47
  48         drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
  49
  50         return 0;
  51 }
  52
  53 #ifdef CONFIG_DRM_FBDEV_EMULATION
  54 static int fb_show(struct seq_file *m, void *arg)
  55 {
  56         struct drm_info_node *node = (struct drm_info_node *) m->private;
  57         struct drm_device *dev = node->minor->dev;
  58         struct omap_drm_private *priv = dev->dev_private;
  59         struct drm_framebuffer *fb;
  60
  61         seq_printf(m, "fbcon ");
  62         omap_framebuffer_describe(priv->fbdev->fb, m);
  63
  64         mutex_lock(&dev->mode_config.fb_lock);
  65         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
  66                 if (fb == priv->fbdev->fb)
  67                         continue;
  68
  69                 seq_printf(m, "user ");
  70                 omap_framebuffer_describe(fb, m);
  71         }
  72         mutex_unlock(&dev->mode_config.fb_lock);
  73
  74         return 0;
  75 }
  76 #endif
  77
  78 /* list of debufs files that are applicable to all devices */
  79 static struct drm_info_list omap_debugfs_list[] = {
  80         {"gem", gem_show, 0},
  81         {"mm", mm_show, 0},
  82 #ifdef CONFIG_DRM_FBDEV_EMULATION
  83         {"fb", fb_show, 0},
  84 #endif
  85 };
  86
  87 /* list of debugfs files that are specific to devices with dmm/tiler */
  88 static struct drm_info_list omap_dmm_debugfs_list[] = {
  89         {"tiler_map", tiler_map_show, 0},
  90 };
  91
  92 int omap_debugfs_init(struct drm_minor *minor)
  93 {
  94         struct drm_device *dev = minor->dev;
  95         int ret;
  96
  97         ret = drm_debugfs_create_files(omap_debugfs_list,
  98                         ARRAY_SIZE(omap_debugfs_list),
  99                         minor->debugfs_root, minor);
 100
 101         if (ret) {
 102                 dev_err(dev->dev, "could not install omap_debugfs_list\n");
 103                 return ret;
 104         }
 105
 106         if (dmm_is_available())
 107                 ret = drm_debugfs_create_files(omap_dmm_debugfs_list,
 108                                 ARRAY_SIZE(omap_dmm_debugfs_list),
 109                                 minor->debugfs_root, minor);
 110
 111         if (ret) {
 112                 dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n");
 113                 return ret;
 114         }
 115
 116         return ret;
 117 }
 118
 119 #endif