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 <linux/string_helpers.h>
27
28#include <drm/drm_debugfs.h>
29#include <drm/drm_file.h>
30#include <drm/drm_print.h>
31
32#include "virtgpu_drv.h"
33
34static void virtio_gpu_add_bool(struct seq_file *m, const char *name,
35 bool value)
36{
37 seq_printf(m, fmt: "%-16s : %s\n", name, str_yes_no(v: value));
38}
39
40static void virtio_gpu_add_int(struct seq_file *m, const char *name, int value)
41{
42 seq_printf(m, fmt: "%-16s : %d\n", name, value);
43}
44
45static int virtio_gpu_features(struct seq_file *m, void *data)
46{
47 struct drm_info_node *node = (struct drm_info_node *)m->private;
48 struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
49
50 virtio_gpu_add_bool(m, name: "virgl", value: vgdev->has_virgl_3d);
51 virtio_gpu_add_bool(m, name: "edid", value: vgdev->has_edid);
52 virtio_gpu_add_bool(m, name: "indirect", value: vgdev->has_indirect);
53
54 virtio_gpu_add_bool(m, name: "resource uuid",
55 value: vgdev->has_resource_assign_uuid);
56
57 virtio_gpu_add_bool(m, name: "blob resources", value: vgdev->has_resource_blob);
58 virtio_gpu_add_bool(m, name: "context init", value: vgdev->has_context_init);
59 virtio_gpu_add_int(m, name: "cap sets", value: vgdev->num_capsets);
60 virtio_gpu_add_int(m, name: "scanouts", value: vgdev->num_scanouts);
61 if (vgdev->host_visible_region.len) {
62 seq_printf(m, fmt: "%-16s : 0x%lx +0x%lx\n", "host visible region",
63 (unsigned long)vgdev->host_visible_region.addr,
64 (unsigned long)vgdev->host_visible_region.len);
65 }
66 return 0;
67}
68
69static int
70virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
71{
72 struct drm_info_node *node = (struct drm_info_node *) m->private;
73 struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
74
75 seq_printf(m, fmt: "fence %llu %lld\n",
76 (u64)atomic64_read(v: &vgdev->fence_drv.last_fence_id),
77 vgdev->fence_drv.current_fence_id);
78 return 0;
79}
80
81static int
82virtio_gpu_debugfs_host_visible_mm(struct seq_file *m, void *data)
83{
84 struct drm_info_node *node = (struct drm_info_node *)m->private;
85 struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
86 struct drm_printer p;
87
88 if (!vgdev->has_host_visible) {
89 seq_puts(m, s: "Host allocations not visible to guest\n");
90 return 0;
91 }
92
93 p = drm_seq_file_printer(f: m);
94 drm_mm_print(mm: &vgdev->host_visible_mm, p: &p);
95 return 0;
96}
97
98static struct drm_info_list virtio_gpu_debugfs_list[] = {
99 { "virtio-gpu-features", virtio_gpu_features },
100 { "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL },
101 { "virtio-gpu-host-visible-mm", virtio_gpu_debugfs_host_visible_mm },
102};
103
104#define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list)
105
106void
107virtio_gpu_debugfs_init(struct drm_minor *minor)
108{
109 drm_debugfs_create_files(files: virtio_gpu_debugfs_list,
110 VIRTIO_GPU_DEBUGFS_ENTRIES,
111 root: minor->debugfs_root, minor);
112}
113

source code of linux/drivers/gpu/drm/virtio/virtgpu_debugfs.c