// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
 * Author: Rob Clark <rob.clark@linaro.org>
 */

#include <linux/seq_file.h>

#include <drm/drm_crtc.h>
#include <drm/drm_debugfs.h>
#include <drm/drm_file.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_print.h>

#include "omap_drv.h"
#include "omap_dmm_tiler.h"

#ifdef CONFIG_DEBUG_FS

static int gem_show(struct seq_file *m, void *arg)
{
        struct drm_info_node *node = (struct drm_info_node *) m->private;
        struct drm_device *dev = node->minor->dev;
        struct omap_drm_private *priv = dev->dev_private;

        seq_printf(m, "All Objects:\n");
        mutex_lock(&priv->list_lock);
        omap_gem_describe_objects(&priv->obj_list, m);
        mutex_unlock(&priv->list_lock);

        return 0;
}

static int mm_show(struct seq_file *m, void *arg)
{
        struct drm_info_node *node = (struct drm_info_node *) m->private;
        struct drm_device *dev = node->minor->dev;
        struct drm_printer p = drm_seq_file_printer(m);

        drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);

        return 0;
}

#ifdef CONFIG_DRM_FBDEV_EMULATION
static int fb_show(struct seq_file *m, void *arg)
{
        struct drm_info_node *node = (struct drm_info_node *) m->private;
        struct drm_device *dev = node->minor->dev;
        struct drm_fb_helper *helper = dev->fb_helper;
        struct drm_framebuffer *fb;

        seq_printf(m, "fbcon ");
        omap_framebuffer_describe(helper->fb, m);

        mutex_lock(&dev->mode_config.fb_lock);
        list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
                if (fb == helper->fb)
                        continue;

                seq_printf(m, "user ");
                omap_framebuffer_describe(fb, m);
        }
        mutex_unlock(&dev->mode_config.fb_lock);

        return 0;
}
#endif

/* list of debufs files that are applicable to all devices */
static struct drm_info_list omap_debugfs_list[] = {
        {"gem", gem_show, 0},
        {"mm", mm_show, 0},
#ifdef CONFIG_DRM_FBDEV_EMULATION
        {"fb", fb_show, 0},
#endif
};

/* list of debugfs files that are specific to devices with dmm/tiler */
static struct drm_info_list omap_dmm_debugfs_list[] = {
        {"tiler_map", tiler_map_show, 0},
};

void omap_debugfs_init(struct drm_minor *minor)
{
        drm_debugfs_create_files(omap_debugfs_list,
                                 ARRAY_SIZE(omap_debugfs_list),
                                 minor->debugfs_root, minor);

        if (dmm_is_available())
                drm_debugfs_create_files(omap_dmm_debugfs_list,
                                         ARRAY_SIZE(omap_dmm_debugfs_list),
                                         minor->debugfs_root, minor);
}

#endif