]> Git Repo - linux.git/blob - drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c
Merge branch 'for-4.17/dax' into libnvdimm-for-next
[linux.git] / drivers / gpu / drm / amd / amdkfd / kfd_debugfs.c
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
26 static struct dentry *debugfs_root;
27
28 static 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
35 static 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
43 void 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
72 void kfd_debugfs_fini(void)
73 {
74         debugfs_remove_recursive(debugfs_root);
75 }
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