1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Copyright (C) 2011 Texas Instruments Incorporated - http://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
 83int omap_debugfs_init(struct drm_minor *minor)
 84{
 85	struct drm_device *dev = minor->dev;
 86	int ret;
 87
 88	ret = drm_debugfs_create_files(omap_debugfs_list,
 89			ARRAY_SIZE(omap_debugfs_list),
 90			minor->debugfs_root, minor);
 91
 92	if (ret) {
 93		dev_err(dev->dev, "could not install omap_debugfs_list\n");
 94		return ret;
 95	}
 96
 97	if (dmm_is_available())
 98		ret = drm_debugfs_create_files(omap_dmm_debugfs_list,
 99				ARRAY_SIZE(omap_dmm_debugfs_list),
100				minor->debugfs_root, minor);
101
102	if (ret) {
103		dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n");
104		return ret;
105	}
106
107	return ret;
108}
109
110#endif