drivers/gpu/drm/omapdrm/omap_debugfs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
   4  * Author: Rob Clark <[email protected]>
   5  */
   6
   7 #include <linux/seq_file.h>
   8
   9 #include <drm/drm_crtc.h>
  10 #include <drm/drm_debugfs.h>
  11 #include <drm/drm_file.h>
  12 #include <drm/drm_fb_helper.h>
  13 #include <drm/drm_framebuffer.h>
  14
  15 #include "omap_drv.h"
  16 #include "omap_dmm_tiler.h"
  17
  18 #ifdef CONFIG_DEBUG_FS
  19
  20 static int gem_show(struct seq_file *m, void *arg)
  21 {
  22         struct drm_info_node *node = (struct drm_info_node *) m->private;
  23         struct drm_device *dev = node->minor->dev;
  24         struct omap_drm_private *priv = dev->dev_private;
  25
  26         seq_printf(m, "All Objects:\n");
  27         mutex_lock(&priv->list_lock);
  28         omap_gem_describe_objects(&priv->obj_list, m);
  29         mutex_unlock(&priv->list_lock);
  30
  31         return 0;
  32 }
  33
  34 static int mm_show(struct seq_file *m, void *arg)
  35 {
  36         struct drm_info_node *node = (struct drm_info_node *) m->private;
  37         struct drm_device *dev = node->minor->dev;
  38         struct drm_printer p = drm_seq_file_printer(m);
  39
  40         drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
  41
  42         return 0;
  43 }
  44
  45 #ifdef CONFIG_DRM_FBDEV_EMULATION
  46 static int fb_show(struct seq_file *m, void *arg)
  47 {
  48         struct drm_info_node *node = (struct drm_info_node *) m->private;
  49         struct drm_device *dev = node->minor->dev;
  50         struct drm_fb_helper *helper = dev->fb_helper;
  51         struct drm_framebuffer *fb;
  52
  53         seq_printf(m, "fbcon ");
  54         omap_framebuffer_describe(helper->fb, m);
  55
  56         mutex_lock(&dev->mode_config.fb_lock);
  57         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
  58                 if (fb == helper->fb)
  59                         continue;
  60
  61                 seq_printf(m, "user ");
  62                 omap_framebuffer_describe(fb, m);
  63         }
  64         mutex_unlock(&dev->mode_config.fb_lock);
  65
  66         return 0;
  67 }
  68 #endif
  69
  70 /* list of debufs files that are applicable to all devices */
  71 static struct drm_info_list omap_debugfs_list[] = {
  72         {"gem", gem_show, 0},
  73         {"mm", mm_show, 0},
  74 #ifdef CONFIG_DRM_FBDEV_EMULATION
  75         {"fb", fb_show, 0},
  76 #endif
  77 };
  78
  79 /* list of debugfs files that are specific to devices with dmm/tiler */
  80 static struct drm_info_list omap_dmm_debugfs_list[] = {
  81         {"tiler_map", tiler_map_show, 0},
  82 };
  83
  84 void omap_debugfs_init(struct drm_minor *minor)
  85 {
  86         drm_debugfs_create_files(omap_debugfs_list,
  87                                  ARRAY_SIZE(omap_debugfs_list),
  88                                  minor->debugfs_root, minor);
  89
  90         if (dmm_is_available())
  91                 drm_debugfs_create_files(omap_dmm_debugfs_list,
  92                                          ARRAY_SIZE(omap_dmm_debugfs_list),
  93                                          minor->debugfs_root, minor);
  94 }
  95
  96 #endif