LXR linux/drivers/gpu/drm/omapdrm/omap

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