1 /*
2  * Copyright (C) 2015 Red Hat, Inc.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  */
25 
26 #include <drm/drm_debugfs.h>
27 #include <drm/drm_file.h>
28 
29 #include "virtgpu_drv.h"
30 
31 static void virtio_add_bool(struct seq_file *m, const char *name,
32 				    bool value)
33 {
34 	seq_printf(m, "%-16s : %s\n", name, value ? "yes" : "no");
35 }
36 
37 static void virtio_add_int(struct seq_file *m, const char *name,
38 				   int value)
39 {
40 	seq_printf(m, "%-16s : %d\n", name, value);
41 }
42 
43 static int virtio_gpu_features(struct seq_file *m, void *data)
44 {
45 	struct drm_info_node *node = (struct drm_info_node *) m->private;
46 	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
47 
48 	virtio_add_bool(m, "virgl", vgdev->has_virgl_3d);
49 	virtio_add_bool(m, "edid", vgdev->has_edid);
50 	virtio_add_int(m, "cap sets", vgdev->num_capsets);
51 	virtio_add_int(m, "scanouts", vgdev->num_scanouts);
52 	return 0;
53 }
54 
55 static int
56 virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
57 {
58 	struct drm_info_node *node = (struct drm_info_node *) m->private;
59 	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
60 
61 	seq_printf(m, "fence %llu %lld\n",
62 		   (u64)atomic64_read(&vgdev->fence_drv.last_seq),
63 		   vgdev->fence_drv.sync_seq);
64 	return 0;
65 }
66 
67 static struct drm_info_list virtio_gpu_debugfs_list[] = {
68 	{ "virtio-gpu-features", virtio_gpu_features },
69 	{ "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL },
70 };
71 
72 #define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list)
73 
74 int
75 virtio_gpu_debugfs_init(struct drm_minor *minor)
76 {
77 	drm_debugfs_create_files(virtio_gpu_debugfs_list,
78 				 VIRTIO_GPU_DEBUGFS_ENTRIES,
79 				 minor->debugfs_root, minor);
80 	return 0;
81 }
82