1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
2 /* Copyright (c) 2023 Imagination Technologies Ltd. */
3
4 #include "pvr_debugfs.h"
5
6 #include "pvr_device.h"
7 #include "pvr_fw_trace.h"
8 #include "pvr_params.h"
9
10 #include <linux/dcache.h>
11 #include <linux/debugfs.h>
12 #include <linux/err.h>
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15
16 #include <drm/drm_device.h>
17 #include <drm/drm_file.h>
18 #include <drm/drm_print.h>
19
20 static const struct pvr_debugfs_entry pvr_debugfs_entries[] = {
21 {"pvr_params", pvr_params_debugfs_init},
22 {"pvr_fw", pvr_fw_trace_debugfs_init},
23 };
24
25 void
pvr_debugfs_init(struct drm_minor * minor)26 pvr_debugfs_init(struct drm_minor *minor)
27 {
28 struct drm_device *drm_dev = minor->dev;
29 struct pvr_device *pvr_dev = to_pvr_device(drm_dev);
30 struct dentry *root = minor->debugfs_root;
31 size_t i;
32
33 for (i = 0; i < ARRAY_SIZE(pvr_debugfs_entries); ++i) {
34 const struct pvr_debugfs_entry *entry = &pvr_debugfs_entries[i];
35 struct dentry *dir;
36
37 dir = debugfs_create_dir(entry->name, root);
38 if (IS_ERR(dir)) {
39 drm_warn(drm_dev,
40 "failed to create debugfs dir '%s' (err=%d)",
41 entry->name, (int)PTR_ERR(dir));
42 continue;
43 }
44
45 entry->init(pvr_dev, dir);
46 }
47 }
48
49 /*
50 * Since all entries are created under &drm_minor->debugfs_root, there's no
51 * need for a pvr_debugfs_fini() as DRM will clean up everything under its root
52 * automatically.
53 */
54