1/*
 2 * Copyright 2016-2017 Advanced Micro Devices, Inc.
 3 *
 4 * Permission is hereby granted, free of charge, to any person obtaining a
 5 * copy of this software and associated documentation files (the "Software"),
 6 * to deal in the Software without restriction, including without limitation
 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 8 * and/or sell copies of the Software, and to permit persons to whom the
 9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23#include <linux/debugfs.h>
24#include "kfd_priv.h"
25
26static struct dentry *debugfs_root;
27
28static int kfd_debugfs_open(struct inode *inode, struct file *file)
29{
30	int (*show)(struct seq_file *, void *) = inode->i_private;
31
32	return single_open(file, show, NULL);
33}
34
35static const struct file_operations kfd_debugfs_fops = {
36	.owner = THIS_MODULE,
37	.open = kfd_debugfs_open,
38	.read = seq_read,
39	.llseek = seq_lseek,
40	.release = single_release,
41};
42
43void kfd_debugfs_init(void)
44{
45	struct dentry *ent;
46
47	debugfs_root = debugfs_create_dir("kfd", NULL);
48	if (!debugfs_root || debugfs_root == ERR_PTR(-ENODEV)) {
49		pr_warn("Failed to create kfd debugfs dir\n");
50		return;
51	}
52
53	ent = debugfs_create_file("mqds", S_IFREG | 0444, debugfs_root,
54				  kfd_debugfs_mqds_by_process,
55				  &kfd_debugfs_fops);
56	if (!ent)
57		pr_warn("Failed to create mqds in kfd debugfs\n");
58
59	ent = debugfs_create_file("hqds", S_IFREG | 0444, debugfs_root,
60				  kfd_debugfs_hqds_by_device,
61				  &kfd_debugfs_fops);
62	if (!ent)
63		pr_warn("Failed to create hqds in kfd debugfs\n");
64
65	ent = debugfs_create_file("rls", S_IFREG | 0444, debugfs_root,
66				  kfd_debugfs_rls_by_device,
67				  &kfd_debugfs_fops);
68	if (!ent)
69		pr_warn("Failed to create rls in kfd debugfs\n");
70}
71
72void kfd_debugfs_fini(void)
73{
74	debugfs_remove_recursive(debugfs_root);
75}