1/*
2 * Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial
14 * portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25
26/*
27 * Authors:
28 * Alon Levy <alevy@redhat.com>
29 */
30
31#include <drm/drm_debugfs.h>
32#include <drm/drm_file.h>
33#include <drm/drm_print.h>
34
35#include "qxl_drv.h"
36#include "qxl_object.h"
37
38#if defined(CONFIG_DEBUG_FS)
39static int
40qxl_debugfs_irq_received(struct seq_file *m, void *data)
41{
42 struct drm_info_node *node = (struct drm_info_node *) m->private;
43 struct qxl_device *qdev = to_qxl(node->minor->dev);
44
45 seq_printf(m, fmt: "%d\n", atomic_read(v: &qdev->irq_received));
46 seq_printf(m, fmt: "%d\n", atomic_read(v: &qdev->irq_received_display));
47 seq_printf(m, fmt: "%d\n", atomic_read(v: &qdev->irq_received_cursor));
48 seq_printf(m, fmt: "%d\n", atomic_read(v: &qdev->irq_received_io_cmd));
49 seq_printf(m, fmt: "%d\n", qdev->irq_received_error);
50 return 0;
51}
52
53static int
54qxl_debugfs_buffers_info(struct seq_file *m, void *data)
55{
56 struct drm_info_node *node = (struct drm_info_node *) m->private;
57 struct qxl_device *qdev = to_qxl(node->minor->dev);
58 struct qxl_bo *bo;
59
60 list_for_each_entry(bo, &qdev->gem.objects, list) {
61 struct dma_resv_iter cursor;
62 struct dma_fence *fence;
63 int rel = 0;
64
65 dma_resv_iter_begin(cursor: &cursor, obj: bo->tbo.base.resv,
66 usage: DMA_RESV_USAGE_BOOKKEEP);
67 dma_resv_for_each_fence_unlocked(&cursor, fence) {
68 if (dma_resv_iter_is_restarted(cursor: &cursor))
69 rel = 0;
70 ++rel;
71 }
72
73 seq_printf(m, fmt: "size %ld, pc %d, num releases %d\n",
74 (unsigned long)bo->tbo.base.size,
75 bo->tbo.pin_count, rel);
76 }
77 return 0;
78}
79
80static struct drm_info_list qxl_debugfs_list[] = {
81 { "irq_received", qxl_debugfs_irq_received, 0, NULL },
82 { "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
83};
84#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
85#endif
86
87void
88qxl_debugfs_init(struct drm_minor *minor)
89{
90#if defined(CONFIG_DEBUG_FS)
91 struct qxl_device *dev = to_qxl(minor->dev);
92
93 drm_debugfs_create_files(files: qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
94 root: minor->debugfs_root, minor);
95
96 qxl_ttm_debugfs_init(qdev: dev);
97#endif
98}
99
100void qxl_debugfs_add_files(struct qxl_device *qdev,
101 struct drm_info_list *files,
102 unsigned int nfiles)
103{
104 unsigned int i;
105
106 for (i = 0; i < qdev->debugfs_count; i++) {
107 if (qdev->debugfs[i].files == files) {
108 /* Already registered */
109 return;
110 }
111 }
112
113 i = qdev->debugfs_count + 1;
114 if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
115 DRM_ERROR("Reached maximum number of debugfs components.\n");
116 DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
117 return;
118 }
119 qdev->debugfs[qdev->debugfs_count].files = files;
120 qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
121 qdev->debugfs_count = i;
122#if defined(CONFIG_DEBUG_FS)
123 drm_debugfs_create_files(files, count: nfiles,
124 root: qdev->ddev.primary->debugfs_root,
125 minor: qdev->ddev.primary);
126#endif
127}
128

source code of linux/drivers/gpu/drm/qxl/qxl_debugfs.c