drivers/gpu/drm/nouveau/nouveau_debugfs.c

   1 /*
   2  * Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial
  14  * portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  19  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  */
  25
  26 /*
  27  * Authors:
  28  *  Ben Skeggs <bskeggs@redhat.com>
  29  */
  30
  31 #include "nouveau_debugfs.h"
  32 #include "nouveau_drm.h"
  33
  34 static int
  35 nouveau_debugfs_vbios_image(struct seq_file *m, void *data)
  36 {
  37         struct drm_info_node *node = (struct drm_info_node *) m->private;
  38         struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
  39         int i;
  40
  41         for (i = 0; i < drm->vbios.length; i++)
  42                 seq_printf(m, "%c", drm->vbios.data[i]);
  43         return 0;
  44 }
  45
  46 static struct drm_info_list nouveau_debugfs_list[] = {
  47         { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
  48 };
  49 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
  50
  51 int
  52 nouveau_debugfs_init(struct drm_minor *minor)
  53 {
  54         drm_debugfs_create_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
  55                                  minor->debugfs_root, minor);
  56         return 0;
  57 }
  58
  59 void
  60 nouveau_debugfs_takedown(struct drm_minor *minor)
  61 {
  62         drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
  63                                  minor);
  64 }