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