2 * Copyright © 2014 Broadcom
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
9 #include <linux/seq_file.h>
10 #include <linux/circ_buf.h>
11 #include <linux/ctype.h>
12 #include <linux/debugfs.h>
17 struct vc4_debugfs_info_entry {
18 struct list_head link;
19 struct drm_info_list info;
23 * Called at drm_dev_register() time on each of the minors registered
24 * by the DRM device, to attach the debugfs files.
27 vc4_debugfs_init(struct drm_minor *minor)
29 struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
30 struct vc4_debugfs_info_entry *entry;
32 debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
33 minor->debugfs_root, &vc4->load_tracker_enabled);
35 list_for_each_entry(entry, &vc4->debugfs_list, link) {
36 int ret = drm_debugfs_create_files(&entry->info, 1,
37 minor->debugfs_root, minor);
46 static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
48 struct drm_info_node *node = (struct drm_info_node *)m->private;
49 struct debugfs_regset32 *regset = node->info_ent->data;
50 struct drm_printer p = drm_seq_file_printer(m);
52 drm_print_regset32(&p, regset);
58 * Registers a debugfs file with a callback function for a vc4 component.
60 * This is like drm_debugfs_create_files(), but that can only be
61 * called a given DRM minor, while the various VC4 components want to
62 * register their debugfs files during the component bind process. We
63 * track the request and delay it to be called on each minor during
66 void vc4_debugfs_add_file(struct drm_device *dev,
68 int (*show)(struct seq_file*, void*),
71 struct vc4_dev *vc4 = to_vc4_dev(dev);
73 struct vc4_debugfs_info_entry *entry =
74 devm_kzalloc(dev->dev, sizeof(*entry), GFP_KERNEL);
79 entry->info.name = name;
80 entry->info.show = show;
81 entry->info.data = data;
83 list_add(&entry->link, &vc4->debugfs_list);
86 void vc4_debugfs_add_regset32(struct drm_device *drm,
88 struct debugfs_regset32 *regset)
90 vc4_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset);