vc4_debugfs.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 *  Copyright © 2014 Broadcom
 4 */
 5
 6#include <drm/drm_drv.h>
 7#include <drm/drm_print.h>
 8
 9#include <linux/seq_file.h>
10#include <linux/circ_buf.h>
11#include <linux/ctype.h>
12#include <linux/debugfs.h>
13#include <linux/platform_device.h>
14
15#include "vc4_drv.h"
16#include "vc4_regs.h"
17
18/*
19 * Called at drm_dev_register() time on each of the minors registered
20 * by the DRM device, to attach the debugfs files.
21 */
22void
23vc4_debugfs_init(struct drm_minor *minor)
24{
25	struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
26	struct drm_device *drm = &vc4->base;
27
28	drm_WARN_ON(drm, vc4_hvs_debugfs_init(minor));
29
30	if (vc4->v3d) {
31		drm_WARN_ON(drm, vc4_bo_debugfs_init(minor));
32		drm_WARN_ON(drm, vc4_v3d_debugfs_init(minor));
33	}
34}
35
36static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
37{
38	struct drm_debugfs_entry *entry = m->private;
39	struct drm_device *drm = entry->dev;
40	struct debugfs_regset32 *regset = entry->file.data;
41	struct drm_printer p = drm_seq_file_printer(m);
42	int idx;
43
44	if (!drm_dev_enter(drm, &idx))
45		return -ENODEV;
46
47	drm_print_regset32(&p, regset);
48
49	drm_dev_exit(idx);
50
51	return 0;
52}
53
54void vc4_debugfs_add_regset32(struct drm_device *drm,
55			      const char *name,
56			      struct debugfs_regset32 *regset)
57{
58	drm_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset);
59}